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Re: [PATCH v3 2/4] arm64: Add xen_boot module file
From: |
Vladimir 'φ-coder/phcoder' Serbinenko |
Subject: |
Re: [PATCH v3 2/4] arm64: Add xen_boot module file |
Date: |
Thu, 29 Oct 2015 15:27:26 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.3.0 |
Committed without the xen_module command. Its argument parsing was
non-trivial and I don't quite get what its intent is. Can you resubmit?
On 23.07.2015 07:16, address@hidden wrote:
> From: Fu Wei <address@hidden>
>
> grub-core/loader/arm64/xen_boot.c
>
> - This adds support for the Xen boot on ARM specification for arm64.
> - Introduce xen_hypervisor, xen_linux, xen_initrd and xen_xsm
> to load different binaries for xen boot;
> Introduce xen_module to load common or custom module for xen boot.
> - This Xen boot support is a separated module for aarch64,
> but reuse the existing code of devicetree in linux module.
>
> Signed-off-by: Fu Wei <address@hidden>
> ---
> grub-core/Makefile.core.def | 7 +
> grub-core/loader/arm64/xen_boot.c | 685
> ++++++++++++++++++++++++++++++++++++++
> 2 files changed, 692 insertions(+)
>
> diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
> index a6101de..796f7e9 100644
> --- a/grub-core/Makefile.core.def
> +++ b/grub-core/Makefile.core.def
> @@ -1648,6 +1648,13 @@ module = {
> };
>
> module = {
> + name = xen_boot;
> + common = lib/cmdline.c;
> + arm64 = loader/arm64/xen_boot.c;
> + enable = arm64;
> +};
> +
> +module = {
> name = linux;
> x86 = loader/i386/linux.c;
> xen = loader/i386/xen.c;
> diff --git a/grub-core/loader/arm64/xen_boot.c
> b/grub-core/loader/arm64/xen_boot.c
> new file mode 100644
> index 0000000..33a65dd
> --- /dev/null
> +++ b/grub-core/loader/arm64/xen_boot.c
> @@ -0,0 +1,685 @@
> +/*
> + * GRUB -- GRand Unified Bootloader
> + * Copyright (C) 2014 Free Software Foundation, Inc.
> + *
> + * GRUB is free software: you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation, either version 3 of the License, or
> + * (at your option) any later version.
> + *
> + * GRUB is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
> + */
> +
> +#include <grub/cache.h>
> +#include <grub/charset.h>
> +#include <grub/command.h>
> +#include <grub/err.h>
> +#include <grub/file.h>
> +#include <grub/fdt.h>
> +#include <grub/linux.h>
> +#include <grub/list.h>
> +#include <grub/loader.h>
> +#include <grub/misc.h>
> +#include <grub/mm.h>
> +#include <grub/types.h>
> +#include <grub/cpu/linux.h>
> +#include <grub/efi/efi.h>
> +#include <grub/efi/pe32.h> /* required by struct xen_hypervisor_header */
> +#include <grub/i18n.h>
> +#include <grub/lib/cmdline.h>
> +
> +GRUB_MOD_LICENSE ("GPLv3+");
> +
> +#define XEN_HYPERVISOR_NAME "xen_hypervisor"
> +
> +#define MODULE_DEFAULT_ALIGN (0x0)
> +#define MODULE_IMAGE_MIN_ALIGN MODULE_DEFAULT_ALIGN
> +#define MODULE_INITRD_MIN_ALIGN MODULE_DEFAULT_ALIGN
> +#define MODULE_XSM_MIN_ALIGN MODULE_DEFAULT_ALIGN
> +#define MODULE_CUSTOM_MIN_ALIGN MODULE_DEFAULT_ALIGN
> +
> +/* #define MODULE_IMAGE_COMPATIBLE "xen,linux-image\0xen,module"
> +#define MODULE_INITRD_COMPATIBLE "xen,linux-image\0xen,module"
> +#define MODULE_XSM_COMPATIBLE "xen,xsm-policy\0xen,module"
> +#define MODULE_CUSTOM_COMPATIBLE "xen,module" */
> +#define MODULE_IMAGE_COMPATIBLE "multiboot,kernel\0multiboot,module"
> +#define MODULE_INITRD_COMPATIBLE "multiboot,ramdisk\0multiboot,module"
> +#define MODULE_XSM_COMPATIBLE "xen,xsm-policy\0multiboot,module"
> +#define MODULE_CUSTOM_COMPATIBLE "multiboot,module"
> +
> +/* This maximum size is defined in Power.org ePAPR V1.1
> + * https://www.power.org/documentation/epapr-version-1-1/
> + * 2.2.1.1 Node Name Requirements
> + * address@hidden
> + * 31 + 1(@) + 16(64bit address in hex format) + 1(\0) = 49
> + */
> +#define FDT_NODE_NAME_MAX_SIZE (49)
> +
> +#define ARG_SHIFT(argc, argv) \
> + do { \
> + (argc)--; \
> + (argv)++; \
> + } while (0)
> +
> +struct compat_string_struct
> +{
> + grub_size_t size;
> + const char *compat_string;
> +};
> +typedef struct compat_string_struct compat_string_struct_t;
> +#define FDT_COMPATIBLE(x) {.size = sizeof(x), .compat_string = (x)}
> +
> +enum module_type
> +{
> + MODULE_IMAGE,
> + MODULE_INITRD,
> + MODULE_XSM,
> + MODULE_CUSTOM
> +};
> +typedef enum module_type module_type_t;
> +
> +struct fdt_node_info
> +{
> + module_type_t type;
> +
> + const char *compat_string;
> + grub_size_t compat_string_size;
> +};
> +
> +struct xen_hypervisor_header
> +{
> + struct grub_arm64_linux_kernel_header efi_head;
> +
> + /* This is always PE\0\0. */
> + grub_uint8_t signature[GRUB_PE32_SIGNATURE_SIZE];
> + /* The COFF file header. */
> + struct grub_pe32_coff_header coff_header;
> + /* The Optional header. */
> + struct grub_pe64_optional_header optional_header;
> +};
> +
> +struct xen_boot_binary
> +{
> + struct xen_boot_binary *next;
> + struct xen_boot_binary **prev;
> + const char *name;
> +
> + grub_addr_t start;
> + grub_size_t size;
> + grub_size_t align;
> +
> + char *cmdline;
> + int cmdline_size;
> +
> + struct fdt_node_info node_info;
> +};
> +
> +static grub_dl_t my_mod;
> +
> +static struct xen_boot_binary *xen_hypervisor;
> +static struct xen_boot_binary *module_head;
> +static const grub_size_t module_default_align[] = {
> + MODULE_IMAGE_MIN_ALIGN,
> + MODULE_INITRD_MIN_ALIGN,
> + MODULE_XSM_MIN_ALIGN,
> + MODULE_CUSTOM_MIN_ALIGN
> +};
> +
> +static void *xen_boot_fdt;
> +static const compat_string_struct_t default_compat_string[] = {
> + FDT_COMPATIBLE (MODULE_IMAGE_COMPATIBLE),
> + FDT_COMPATIBLE (MODULE_INITRD_COMPATIBLE),
> + FDT_COMPATIBLE (MODULE_XSM_COMPATIBLE),
> + FDT_COMPATIBLE (MODULE_CUSTOM_COMPATIBLE)
> +};
> +
> +static __inline grub_addr_t
> +xen_boot_address_align (grub_addr_t start, grub_size_t align)
> +{
> + return (align ? (ALIGN_UP (start, align)) : start);
> +}
> +
> +/* Parse the option of xen_module command. For now, we support
> + (1) --type <the compatible stream>
> + We also set up the type of module in this function.
> + If there are some "--type" options in the command line,
> + we make a custom compatible stream in this function. */
> +static grub_err_t
> +set_module_type (grub_command_t cmd, struct xen_boot_binary *module,
> + int argc, char *argv[], int *file_name_index)
> +{
> + char **compat_string_temp_array;
> + grub_size_t total_size = 0;
> + int num_types = 0, i;
> + char *temp = NULL;
> +
> + *file_name_index = 0;
> +
> + if (!grub_strcmp (cmd->name, "xen_linux"))
> + module->node_info.type = MODULE_IMAGE;
> + else if (!grub_strcmp (cmd->name, "xen_initrd"))
> + module->node_info.type = MODULE_INITRD;
> + else if (!grub_strcmp (cmd->name, "xen_xsm"))
> + module->node_info.type = MODULE_XSM;
> + else if (!grub_strcmp (cmd->name, "xen_module"))
> + module->node_info.type = MODULE_CUSTOM;
> +
> + /* if there are some options we need to process. */
> + if (module->node_info.type == MODULE_CUSTOM)
> + {
> + compat_string_temp_array =
> + (char **) grub_zalloc (sizeof (char *) * argc);
> + if (!compat_string_temp_array)
> + return grub_errno;
> + /* the module type is set by "--type"(MODULE_CUSTOM) */
> + while (argc > 2 && !grub_strcmp (argv[0], "--type"))
> + {
> + module->node_info.type = MODULE_CUSTOM;
> + ARG_SHIFT (argc, argv);
> + total_size += grub_strlen (argv[0]) + 1;
> + compat_string_temp_array[num_types++] = argv[0];
> + ARG_SHIFT (argc, argv);
> + (*file_name_index) += 2;
> + }
> +
> + if (total_size)
> + {
> + module->node_info.compat_string = temp =
> + (char *) grub_zalloc (total_size);
> + if (!temp)
> + {
> + grub_free (compat_string_temp_array);
> + return grub_errno;
> + }
> +
> + module->node_info.compat_string_size = total_size;
> + for (i = 0; num_types > 0; num_types--, i++, temp++)
> + {
> + grub_strcpy (temp, compat_string_temp_array[i]);
> + temp += grub_strlen (compat_string_temp_array[i]);
> + }
> + }
> + else
> + {
> + module->node_info.compat_string =
> + default_compat_string[MODULE_CUSTOM].compat_string;
> + module->node_info.compat_string_size =
> + default_compat_string[MODULE_CUSTOM].size;
> + }
> +
> + grub_free (compat_string_temp_array);
> + }
> +
> + return GRUB_ERR_NONE;
> +}
> +
> +static grub_err_t
> +prepare_xen_hypervisor_params (void)
> +{
> + int chosen_node = 0;
> + int retval;
> +
> + xen_boot_fdt = grub_linux_get_fdt ();
> + if (!xen_boot_fdt)
> + return grub_error (GRUB_ERR_IO, "failed to get FDT");
> +
> + chosen_node = grub_fdt_find_subnode (xen_boot_fdt, 0, "chosen");
> + if (chosen_node < 0)
> + chosen_node = grub_fdt_add_subnode (xen_boot_fdt, 0, "chosen");
> + if (chosen_node < 1)
> + return grub_error (GRUB_ERR_IO, "failed to get chosen node in FDT");
> +
> + grub_dprintf ("xen_loader",
> + "Xen Hypervisor cmdline : %s @ %p size:%d\n",
> + xen_hypervisor->cmdline, xen_hypervisor->cmdline,
> + xen_hypervisor->cmdline_size);
> +
> + retval = grub_fdt_set_prop (xen_boot_fdt, chosen_node, "bootargs",
> + xen_hypervisor->cmdline,
> + xen_hypervisor->cmdline_size);
> + if (retval)
> + return grub_error (GRUB_ERR_IO, "failed to install/update FDT");
> +
> + return GRUB_ERR_NONE;
> +}
> +
> +static grub_err_t
> +prepare_xen_module_params (struct xen_boot_binary *module)
> +{
> + int retval, chosen_node = 0, module_node = 0;
> + char module_name[FDT_NODE_NAME_MAX_SIZE];
> +
> + retval = grub_snprintf (module_name, FDT_NODE_NAME_MAX_SIZE,
> "address@hidden",
> + xen_boot_address_align (module->start,
> + module->align));
> + grub_dprintf ("xen_loader", "Module node name %s \n", module_name);
> +
> + if (retval < (int) sizeof ("module@"))
> + return grub_error (GRUB_ERR_IO, N_("failed to get FDT"));
> +
> + chosen_node = grub_fdt_find_subnode (xen_boot_fdt, 0, "chosen");
> + if (chosen_node < 0)
> + chosen_node = grub_fdt_add_subnode (xen_boot_fdt, 0, "chosen");
> + if (chosen_node < 1)
> + return grub_error (GRUB_ERR_IO, "failed to get chosen node in FDT");
> +
> + module_node =
> + grub_fdt_find_subnode (xen_boot_fdt, chosen_node, module_name);
> + if (module_node < 0)
> + module_node =
> + grub_fdt_add_subnode (xen_boot_fdt, chosen_node, module_name);
> +
> + retval = grub_fdt_set_prop (xen_boot_fdt, module_node, "compatible",
> + module->node_info.compat_string,
> + (grub_uint32_t) module->
> + node_info.compat_string_size);
> + if (retval)
> + return grub_error (GRUB_ERR_IO, N_("failed to update FDT"));
> +
> + grub_dprintf ("xen_loader", "Module %s compatible = %s size = 0x%lx\n",
> + module->name, module->node_info.compat_string,
> + module->node_info.compat_string_size);
> +
> + retval = grub_fdt_set_reg64 (xen_boot_fdt, module_node,
> + xen_boot_address_align (module->start,
> + module->align),
> + module->size);
> + if (retval)
> + return grub_error (GRUB_ERR_IO, N_("failed to update FDT"));
> +
> + if (module->cmdline && module->cmdline_size > 0)
> + {
> + grub_dprintf ("xen_loader",
> + "Module %s cmdline : %s @ %p size:%d\n", module->name,
> + module->cmdline, module->cmdline, module->cmdline_size);
> +
> + retval = grub_fdt_set_prop (xen_boot_fdt, module_node, "bootargs",
> + module->cmdline, module->cmdline_size + 1);
> + if (retval)
> + return grub_error (GRUB_ERR_IO, "failed to update FDT");
> + }
> + else
> + {
> + grub_dprintf ("xen_loader", "Module %s has not bootargs!\n",
> + module->name);
> + }
> +
> + return GRUB_ERR_NONE;
> +}
> +
> +static grub_err_t
> +install_all_params (void)
> +{
> + grub_efi_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID;
> + grub_efi_boot_services_t *b;
> + grub_efi_status_t status;
> +
> + b = grub_efi_system_table->boot_services;
> + status = b->install_configuration_table (&fdt_guid, xen_boot_fdt);
> + if (status != GRUB_EFI_SUCCESS)
> + return grub_error (GRUB_ERR_IO, "failed to install FDT");
> +
> + grub_dprintf ("xen_loader",
> + "Installed/updated FDT configuration table @ %p\n",
> + xen_boot_fdt);
> +
> + return GRUB_ERR_NONE;
> +}
> +
> +static grub_err_t
> +clean_all_params (void)
> +{
> + if (xen_boot_fdt)
> + {
> + grub_efi_free_pages ((grub_efi_physical_address_t) xen_boot_fdt,
> + BYTES_TO_PAGES (grub_fdt_get_totalsize
> + (xen_boot_fdt)));
> + xen_boot_fdt = NULL;
> + }
> +
> + return GRUB_ERR_NONE;
> +}
> +
> +static grub_err_t
> +finalize_params_xen_boot (void)
> +{
> + struct xen_boot_binary *module;
> +
> + if (xen_hypervisor)
> + {
> + if (prepare_xen_hypervisor_params () != GRUB_ERR_NONE)
> + goto fail;
> + }
> + else
> + {
> + grub_dprintf ("xen_loader", "Failed to get Xen Hypervisor info!\n");
> + goto fail;
> + }
> +
> + /* Set module params info */
> + FOR_LIST_ELEMENTS (module, module_head)
> + {
> + if (module->start && module->size > 0)
> + {
> + grub_dprintf ("xen_loader", "Module %s @ 0x%lx size:0x%lx\n",
> + module->name,
> + xen_boot_address_align (module->start, module->align),
> + module->size);
> + if (prepare_xen_module_params (module) != GRUB_ERR_NONE)
> + goto fail;
> + }
> + else
> + {
> + grub_dprintf ("xen_loader", "Module info error: %s!\n", module->name);
> + goto fail;
> + }
> + }
> +
> + if (install_all_params () == GRUB_ERR_NONE)
> + return GRUB_ERR_NONE;
> +
> +fail:
> + clean_all_params ();
> +
> + return grub_error (GRUB_ERR_IO, "failed to install/update FDT");
> +}
> +
> +
> +static grub_err_t
> +xen_boot (void)
> +{
> + grub_err_t err = finalize_params_xen_boot ();
> + if (err)
> + return err;
> +
> + return grub_arm64_uefi_boot_image (xen_hypervisor->start,
> + xen_hypervisor->size,
> + xen_hypervisor->cmdline);
> +}
> +
> +static void
> +single_binary_unload (struct xen_boot_binary *binary)
> +{
> + if (!binary)
> + return;
> +
> + if (binary->start && binary->size > 0)
> + {
> + grub_efi_free_pages ((grub_efi_physical_address_t) binary->start,
> + BYTES_TO_PAGES (binary->size + binary->align));
> + }
> +
> + if (binary->cmdline && binary->cmdline_size > 0)
> + {
> + grub_free (binary->cmdline);
> + grub_dprintf ("xen_loader",
> + "Module %s cmdline memory free @ %p size: %d\n",
> + binary->name, binary->cmdline, binary->cmdline_size);
> + }
> +
> + if (binary->node_info.type == MODULE_CUSTOM)
> + grub_free ((void *) binary->node_info.compat_string);
> +
> + if (grub_strcmp (binary->name, XEN_HYPERVISOR_NAME))
> + grub_list_remove (GRUB_AS_LIST (binary));
> +
> + grub_dprintf ("xen_loader",
> + "Module %s struct memory free @ %p size: 0x%lx\n",
> + binary->name, binary, sizeof (binary));
> + grub_free (binary);
> +
> + return;
> +}
> +
> +static void
> +all_binaries_unload (void)
> +{
> + struct xen_boot_binary *binary;
> +
> + FOR_LIST_ELEMENTS (binary, module_head)
> + {
> + single_binary_unload (binary);
> + }
> +
> + if (xen_hypervisor)
> + single_binary_unload (xen_hypervisor);
> +
> + return;
> +}
> +
> +static grub_err_t
> +xen_unload (void)
> +{
> + grub_linux_set_loaded (0);
> + all_binaries_unload ();
> + clean_all_params ();
> + grub_dl_unref (my_mod);
> +
> + return GRUB_ERR_NONE;
> +}
> +
> +static void
> +xen_boot_binary_load (struct xen_boot_binary *binary, grub_file_t file,
> + int argc, char *argv[])
> +{
> + binary->size = grub_file_size (file);
> + grub_dprintf ("xen_loader", "Xen_boot %s file size: 0x%lx\n",
> + binary->name, binary->size);
> +
> + binary->start = (grub_addr_t) grub_efi_allocate_pages (0,
> + (BYTES_TO_PAGES
> + (binary->size +
> + binary->align)));
> + if (!binary->start)
> + {
> + grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
> + return;
> + }
> +
> + grub_dprintf ("xen_loader", "Xen_boot %s numpages: 0x%lx\n",
> + binary->name, BYTES_TO_PAGES (binary->size + binary->align));
> +
> + if (grub_file_read (file, (void *) xen_boot_address_align (binary->start,
> + binary->align),
> + binary->size) != (grub_ssize_t) binary->size)
> + {
> + single_binary_unload (binary);
> + grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), argv[0]);
> + return;
> + }
> +
> + if (argc > 1)
> + {
> + binary->cmdline_size = grub_loader_cmdline_size (argc - 1, argv + 1);
> + binary->cmdline = grub_zalloc (binary->cmdline_size);
> + if (!binary->cmdline)
> + {
> + single_binary_unload (binary);
> + grub_error (GRUB_ERR_OUT_OF_MEMORY, N_("out of memory"));
> + return;
> + }
> + grub_create_loader_cmdline (argc - 1, argv + 1, binary->cmdline,
> + binary->cmdline_size);
> + grub_dprintf ("xen_loader",
> + "Xen_boot %s cmdline @ %p %s, size: %d\n", binary->name,
> + binary->cmdline, binary->cmdline, binary->cmdline_size);
> + }
> + else
> + {
> + binary->cmdline_size = 0;
> + binary->cmdline = NULL;
> + }
> +
> + grub_errno = GRUB_ERR_NONE;
> + return;
> +}
> +
> +static grub_err_t
> +grub_cmd_xen_module (grub_command_t cmd, int argc, char *argv[])
> +{
> +
> + struct xen_boot_binary *module = NULL;
> + int file_name_index = 0;
> + grub_file_t file = 0;
> +
> + if (!argc)
> + {
> + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
> + goto fail;
> + }
> +
> + if (!grub_linux_get_loaded ())
> + {
> + grub_error (GRUB_ERR_BAD_ARGUMENT,
> + N_("you need to load the Xen Hypervisor first"));
> + goto fail;
> + }
> +
> + module =
> + (struct xen_boot_binary *) grub_zalloc (sizeof (struct xen_boot_binary));
> + if (!module)
> + return grub_errno;
> +
> + /* process all the options and get module type */
> + if (set_module_type (cmd, module, argc, argv, &file_name_index) !=
> + GRUB_ERR_NONE)
> + goto fail;
> + switch (module->node_info.type)
> + {
> + case MODULE_IMAGE:
> + case MODULE_INITRD:
> + case MODULE_XSM:
> + module->node_info.compat_string =
> + default_compat_string[module->node_info.type].compat_string;
> + module->node_info.compat_string_size =
> + default_compat_string[module->node_info.type].size;
> + break;
> +
> + case MODULE_CUSTOM:
> + /* we have set the node_info in set_module_type */
> + break;
> +
> + default:
> + return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("invalid argument"));
> + }
> + module->name = module->node_info.compat_string;
> + module->align = module_default_align[module->node_info.type];
> +
> + grub_dprintf ("xen_loader", "Init %s module and node info:\n"
> + "compatible %s\ncompat_string_size 0x%lx\n",
> + module->name, module->node_info.compat_string,
> + module->node_info.compat_string_size);
> +
> + file = grub_file_open (argv[file_name_index]);
> + if (!file)
> + goto fail;
> +
> + xen_boot_binary_load (module, file, argc - file_name_index,
> + argv + file_name_index);
> + if (grub_errno == GRUB_ERR_NONE)
> + grub_list_push (GRUB_AS_LIST_P (&module_head), GRUB_AS_LIST (module));
> +
> +fail:
> + if (file)
> + grub_file_close (file);
> + if (grub_errno != GRUB_ERR_NONE)
> + single_binary_unload (module);
> +
> + return grub_errno;
> +}
> +
> +static grub_err_t
> +grub_cmd_xen_hypervisor (grub_command_t cmd __attribute__ ((unused)),
> + int argc, char *argv[])
> +{
> + struct xen_hypervisor_header sh;
> + grub_file_t file = NULL;
> +
> + grub_dl_ref (my_mod);
> +
> + if (!argc)
> + {
> + grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
> + goto fail;
> + }
> +
> + file = grub_file_open (argv[0]);
> + if (!file)
> + goto fail;
> +
> + if (grub_file_read (file, &sh, sizeof (sh)) != (long) sizeof (sh))
> + goto fail;
> + if (grub_arm64_uefi_check_image
> + ((struct grub_arm64_linux_kernel_header *) &sh) != GRUB_ERR_NONE)
> + goto fail;
> + grub_file_seek (file, 0);
> +
> + /* if another module has called grub_loader_set,
> + we need to make sure that another module is unloaded properly */
> + grub_loader_unset ();
> +
> + xen_hypervisor =
> + (struct xen_boot_binary *) grub_zalloc (sizeof (struct xen_boot_binary));
> + if (!xen_hypervisor)
> + return grub_errno;
> +
> + xen_hypervisor->name = XEN_HYPERVISOR_NAME;
> + xen_hypervisor->align = (grub_size_t) sh.optional_header.section_alignment;
> +
> + xen_boot_binary_load (xen_hypervisor, file, argc, argv);
> + if (grub_errno == GRUB_ERR_NONE)
> + {
> + grub_loader_set (xen_boot, xen_unload, 0);
> + grub_linux_set_loaded (1);
> + }
> +
> +fail:
> + if (file)
> + grub_file_close (file);
> + if (grub_errno != GRUB_ERR_NONE)
> + {
> + grub_linux_set_loaded (0);
> + all_binaries_unload ();
> + grub_dl_unref (my_mod);
> + }
> +
> + return grub_errno;
> +}
> +
> +static grub_command_t cmd_xen_hypervisor, cmd_xen_module;
> +static grub_command_t cmd_xen_linux, cmd_xen_initrd, cmd_xen_xsm;
> +
> +GRUB_MOD_INIT (xen_boot)
> +{
> + cmd_xen_hypervisor =
> + grub_register_command ("xen_hypervisor", grub_cmd_xen_hypervisor, 0,
> + N_("Load a xen hypervisor."));
> + cmd_xen_linux =
> + grub_register_command ("xen_linux", grub_cmd_xen_module, 0,
> + N_("Load a xen linux kernel for dom0."));
> + cmd_xen_initrd =
> + grub_register_command ("xen_initrd", grub_cmd_xen_module, 0,
> + N_("Load a xen initrd for dom0."));
> + cmd_xen_xsm =
> + grub_register_command ("xen_xsm", grub_cmd_xen_module, 0,
> + N_("Load a xen security module."));
> + cmd_xen_module =
> + grub_register_command ("xen_module", grub_cmd_xen_module, 0,
> + N_("Load a xen module."));
> + my_mod = mod;
> +}
> +
> +GRUB_MOD_FINI (xen_boot)
> +{
> + grub_unregister_command (cmd_xen_hypervisor);
> + grub_unregister_command (cmd_xen_linux);
> + grub_unregister_command (cmd_xen_initrd);
> + grub_unregister_command (cmd_xen_xsm);
> + grub_unregister_command (cmd_xen_module);
> +}
>
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Description: OpenPGP digital signature
- Re: [PATCH v3 2/4] arm64: Add xen_boot module file,
Vladimir 'φ-coder/phcoder' Serbinenko <=